Envelop.



PATENTED MAY 5, 1908.

G. HITZLBRY, JR.

EN VELOP.

APPLICATION FILED JUNE 28.1906.

c n N. m H u w m s u n P m R m u n GEORGE HITZLER, JR, OF HOBOKEN, NEW JERSEY.

' ENVELOP.

Application filed June 28,

To all whom it may concern:

Be it known that I, GEORGE HITZLER, Jr., a citizen of the United States of America, residing at Hoboken, in the county of Hudson and State of New Jersey, have invented new and useful Improvements in Envelops, of which the following is a specification.

This invention relates to envelops of the safety type and has for its objects to produce a comparatively simple, inexpensive device of this character wherein removal of the letter or other contents of the envelop, without detection, is precluded, and one wherein the retaining member may be readily and securely engaged with the letter and will be invisible when the envelop is in closed condition.

With these and other objects in view, the invention comprises the novel features of construction and combination of parts more fully hereinafter described.

In the accompanying drawings: Figure 1 is a plan view of the envelop blank showing the same in unfolded condition and the retaining member in place. Fig. 2 is a cross section taken through the envelop on a line centrally and longitudinally of the retaining member and showing the envelop in folded condition.

Referring to the drawings, it will be seen that the envelop blank comprises a body portion 1 having end flaps 2, a lower side flap 3, and a sealing flap 4, to the inner face of which there is applied along its edge a coating of suitable adhesive material 5, it being understood that after formation of the blank and in completing the envelop, the end flaps 2 are folded over onto the body 1 and the flaps 3 thereafter folded over and for securing the end flaps in the usual manner.

Cemented or otherwise attached to the inner face of the envelop at a point adjacent its lon itudinal center is a retaining member preferably in the formof a strip or ribbon 6 i of comparatively thin paper or other tearable material having end portions or tabs 7 adapted to register with each other and having their inner opposed faces coated as at 8 with gum or other adhesive, the strip 6 being extended transversely across the envelop blank in the manner shown in Fig. 1 and to be wholly inclosed within the envelop when completed as in Fig. 2.

The tab or tip 7 on the inner face of the front or body of the envelop is located above the top or apex of the bottom flap 3 in the Specification of Letters Patent.

Patented May 5, 1908. 1906. Serial No. 323,815.

finished envelop so that the gummed part 8 can be readily moistened by applying the tongue thereto. The other tab or tip 7 exi tends beyond the apex of the lower flap 3 and can be bent backwardly to permit the gummed surface thereof to be easily moistened by the ton ue. In other words, the tabs or tips of t e U-shaped strip 6 are located at the middle of the opening of the envelop and above the top edges of the lower and end flaps so that the tongue can be a plied readily to both. In practice, when tile blank is folded the retaining strip 6 will be I folded at its longitudinal center along its line of juncture of the flap 3 with the body 1 and with its portions or sections spaced relatively to receive between them the letter or other matter introduced into the envelop. Prior to introduction of the letter into the envelop the gummed faces 8 of the tabs 7 are moistened for adhesive engagement with the letter, after which the envelop is closed in the ordinary manner by sealing the flap 5. Under this arrangement the retaining strip will be wholly invisible when the envelop is closed and any attempt to remove the letter or other contents from the envelop will result in destroying the retaining member whereby the fact of the contents having been removed will be apparent, it being understood that velop other than by destroying theretaining strip is wholly obviated.

Having thus described my invention, what I claim is:

1. An envelop provided with a sealing flap for closing its bottom, and gummed parts arranged within the envelop and secured to the innerfaces of the front and back of the envelop at the opening and adapted to be moistened through the opening for adhering to the opposite sides of the contents of the envelop, one of the parts being bendable outwardly.

2. The combination with an envelop, of a U-shaped retaining strip arranged transversely therein ant composed of a tearable material, said strip being attached to the rear and front inner surfaces of the envelop and having adhesive tip portions adapted to be stuck on opposite sides of the contents for preventing the latter from being removed from the envelop without tearing the said strip.

3. An envelop oomprising a body, and end, bottom and sealing flaps, in combination with members of tearable material arranged fraudulent removal of the contents of the en centrally of the envelop and secured to the 1 In testimony whereof, I a'lfix my signature innir surfaces of the1 bottgm fla l and boidy in presence of two Witnesses. Wit ortions eXten ing a ove t e to e ge of thel bottom flap,said portions having their GEORGE HITZLER 5 opposed faces gumrned to adhere to the con- Witnesses:

tents of the envelo ,one of the portions being JOHN WVRIGHT, bendable outwardl y. SAMUEL ENGLE. 

